Image displaying apparatus having magnification-changing system
AssigneeCanon Kabushiki Kaisha
InventorsTsunefumi Tanaka, Sadahiko Tsuji, Hideki Morishima, Norihiro Nanba, Takeshi Akiyama
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Abstract
The present invention relates to an image displaying apparatus comprising an image displaying device for radiating light to display an image, a first optical system for forming the image on a primary image plane, which has a magnification-changing portion for changing an image magnification of the image and a second optical system for guiding light from the primary image plane to the pupil of an observer in order to enable the observer to observe an enlarged, virtual image of the image formed on the primary image plane.
Claims10
An image displaying apparatus comprising:
- image displaying means for radiating light to display an image;
- a first optical system for forming said image on a primary image plane, which has a magnification-changing portion for changing an image magnification of said image, said magnification-changing portion having at least two magnification-changing partial systems relatively moving to each other on an optical axis of said first optical system;
- and
- a second optical system for guiding light from said primary image plane to the pupil of an observer in order to enable the observer to observe an enlarged, virtual image of the image formed on said primary image plane.
A multi-eye type image displaying apparatus comprising:
- two displaying devices for the left eye and the right eye of an observer, each having image displaying means for radiating light to display an image, a first optical system for forming said image on a primary image plane, which has a magnification-changing portion for changing an image magnification of said image, and a second optical system for guiding light from said primary image plane to the pupil of said observer in order to enable the observer to observe an enlarged, virtual image of the image formed on said primary image plane;
- wherein said each magnification-changing portion in the first optical system for the left eye or the right eye has at least two magnification-changing partial systems relatively moving to each other on an optical axis of each optical system and means for moving the respective magnification-changing partial systems and wherein said moving means move said magnification-changing portions in the first optical systems for the left eye and the right eye by a same amount.
Dependencies are inferred from the claim text.